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Stationary Low-Power Reactor Number One, also known as SL-1, initially the Argonne Low Power Reactor (ALPR), was a United States Army experimental nuclear reactor in the western United States at the National Reactor Testing Station (NRTS) in Idaho about forty miles (65 km) west of Idaho Falls, now the Idaho National Laboratory.
The SL-1 was designed by the Argonne National Laboratory to gain experience in boiling water reactor operations, develop performance characteristics, train military crews, and test components. Combustion Engineering was awarded a contract by the AEC to operate the SL-1 and in turn employed the Army's military operating crew to continue running ...
Design power of BORAX-I was 1.4 megawatts thermal. The BORAX-I design was a precursor to the SL-1 plant, which began operations nearby in 1958. The principles discovered in the BORAX-I experiments helped scientists understand the fatal meltdown at SL-1 in 1961. The BORAX-II reactor was built in 1954, with a design output of 6 MW(t).
During a maintenance shutdown, the SL-1 experimental nuclear reactor underwent a prompt critical reaction causing core materials to explosively vaporize. Water hammer estimated at 10,000 pounds per square inch (69,000 kPa) struck the top of the reactor vessel propelling the entire reactor vessel upwards over 9 feet (2.7 m) in the air. One ...
Explosion at National Reactor Testing Station's SL-1 Stationary Low-Power Reactor Number One: 3: 22: 4 October 5, 1966: Monroe, Michigan, USA: Sodium cooling system malfunctions at Enrico Fermi demonstration breeder reactor causing some fuel elements to melt: 0: 19: 4 August 11, 1973: Palisades, Michigan, USA
The Unit 1 reactor on Three Mile Island, which closed in 2019, is adjacent to the Unit 2 reactor that experienced a major nuclear power accident in 1979.
An experimental reactor called SL-1 (Stationary Low-Power Plant Number 1) was destroyed when a control rod was pulled too far out of the reactor, leading to a near-instantaneous prompt-critical power excursion and steam explosion. The reactor vessel jumped up 9 feet 1 inch (2.77 m). [62]
The plant's reactors Nos. 4, 5 and 6 were inactive at the time. 1 [42] and 3+ labour accidents; plus a broader number of primarily ill or elderly people from evacuation stress: 1,255–2,078 (2018 est.) [43] 7 September 12, 2011: Marcoule, France: One person was killed and four injured, one seriously, in a blast at the Marcoule Nuclear Site ...